Maskell. — Oil Coccidae. 389 



are from Mr. French, who collected them near Melbourne, 

 " within full reach of the sea-spray." 



I was long in doubt, considering the very short puparia 

 and the almost globular form of some amongst the specimens 

 sent to me, aiid also the numerous serrated scaly hairs on the 

 abdominal margin, whether this insect ought not to be placed 

 in the genus Parlatoria. But after careful examination I have 

 concluded that the pellicles are always quite terminal, and 

 the puparia really pyriform ; and that the female is really 

 elongate and not globular. Moreover, no species of Parla- 

 toria has more than four groups of spinnerets. On the whole, 

 therefore, I place the insects in Mytilaspis, having regard to 

 the non-carinated male puparium. 



This species may be considered as at least semi-aquatic, 

 for Mr. French tells me the plants on which it was found are 

 quite constantly wetted by the sea-spray. 



Mytilaspis melaleucse, sp. nov. Plate XIX., fig. 6. 



Puparium of female elongated, pyriform, convex ; colour 

 of secreted portion greyish-white ; pellicles terminal, dark- 

 orange. Length of puparium about -^^-in. 



Puparium of male elongated, subcylindrical, convex, not 

 carinated ; secretion white ; pellicle terminal, orange. Length 

 about -^^m. 



Adult female yellow, elongated. Abdomen ending with 

 four very small lobes, not close together ; the two median 

 lobes are a little larger than the others and are cylindrical, 

 with the ends rounded but emarginate ; the outer lobes are 

 conical. Margin of the abdomen broken by many small 

 serrations, and bearing several short hairs, of which there are 

 two between each pair of lobes. Five groups of spinnerets : 

 upper group with 3 orifices ; upper laterals 6-8 ; lower laterals 

 4-6. Several dorsal tubular spinnerets along the margin. 



Adult male unknown. 



Hab. In Australia, on j\[elaleuca sp. My specimens were 

 sent by Mr. Froggatt, from Ballina, Eichmond River, New 

 South Wales, 



The puparia of this species approach M. casuarina, M.' 

 spinifera, &c. ; and also to Poliaspis cxocaipi ; but the ab- 

 dominal characters differ from any hitherto described. 



Genus Chionaspis. 



Chionaspis prunicola, Maskell, var. these, var. nov. Plate 



XIX., figs. 7-8. 



I have received from the Indian Museum, Calcutta, some 

 specimens which, after very careful examination, I must 

 attach to C. prunicola. The female puparium is a little more 

 elongated, and the anterior abdominal margin has fewer 



